GM TH400 Turbo 400 Transmission Billet Aluminum Direct Drum Only Speedmaster electric water pumps eliminate

Speedmaster electric water pumps eliminate unnecessary weight and impeller drag experienced at high RPM

Designed for precision fitment and easy installation

The filter extensions fit Speedmaster deep transmission pans

but they also lengthen valvetrain component life and reduce wear and tear on valve stem tips

Choose long or short styles in a natural or shiny polished finishes

GM TH400 Turbo 400 Transmission Billet Aluminum Direct Drum Only Speedmaster electric water pumps eliminateThis TH400 7075 T6 Billet Aluminum Direct Drum is manufactured specifically for drag racing. Includes a Billet aluminum piston. Drum weights 55% less than the OEM drum.